So my twin girls are just fitting into the newborn sized cloth diapers I bought. I did my first load and now they don't smell very fresh. Not like ammonia, just...stinky. I washed my kawaii pure and naturals, bumgenius AIO newborns, and swaddlebees simplex all together, and did a cold rinse followed by a hot wash, with two tablespoons of rockin green. What am I doing wrong?